[ADD] Add partner contract anniversary date fields

partner_contract_anniversary/README.rst

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+============================
+Partner Contract Anniversary
+============================
+
+.. 
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! This file is generated by oca-gen-addon-readme !!
+   !! changes will be overwritten.                   !!
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! source digest: sha256:b636c7a029d6112ebc27c732b83cfe8121cf149cf7e7d416947b222c36012302
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+.. |badge1| image:: https://img.shields.io/badge/maturity-Beta-yellow.png
+    :target: https://odoo-community.org/page/development-status
+    :alt: Beta
+.. |badge2| image:: https://img.shields.io/badge/licence-AGPL--3-blue.png
+    :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
+    :alt: License: AGPL-3
+.. |badge3| image:: https://img.shields.io/badge/github-OCA%2Fcontract-lightgray.png?logo=github
+    :target: https://github.com/OCA/contract/tree/18.0/partner_contract_anniversary
+    :alt: OCA/contract
+.. |badge4| image:: https://img.shields.io/badge/weblate-Translate%20me-F47D42.png
+    :target: https://translation.odoo-community.org/projects/contract-18-0/contract-18-0-partner_contract_anniversary
+    :alt: Translate me on Weblate
+.. |badge5| image:: https://img.shields.io/badge/runboat-Try%20me-875A7B.png
+    :target: https://runboat.odoo-community.org/builds?repo=OCA/contract&target_branch=18.0
+    :alt: Try me on Runboat
+
+|badge1| |badge2| |badge3| |badge4| |badge5|
+
+This module adds contract anniversary tracking to partner records,
+automatically calculating the first contract date and current year’s
+anniversary date. It includes a dedicated Contracts tab in the partner
+form and allows filtering by anniversary dates, useful for renewals and
+customer relationship management.
+
+**Table of contents**
+
+.. contents::
+   :local:
+
+Usage
+=====
+
+Viewing Contract Dates
+----------------------
+
+1. Navigate to **Contacts** → **Contacts**
+2. Open any partner record
+3. Click on the **Contracts** tab to view:
+
+   - **First Contract Date**: The earliest contract start date
+   - **Contract Anniversary Date**: This year's anniversary date
+     (automatically calculated)
+
+Searching by Anniversary Date
+-----------------------------
+
+1. Go to **Contacts** → **Contacts**
+2. Click the **Filters** button
+3. Select **Advanced Search**
+4. Use the **Contract Anniversary Date** field to:
+
+   - Find contacts with anniversaries on specific dates
+   - Filter for upcoming anniversaries
+   - Identify contacts without contracts
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues <https://github.com/OCA/contract/issues>`_.
+In case of trouble, please check there if your issue has already been reported.
+If you spotted it first, help us to smash it by providing a detailed and welcomed
+`feedback <https://github.com/OCA/contract/issues/new?body=module:%20partner_contract_anniversary%0Aversion:%2018.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
+
+Do not contact contributors directly about support or help with technical issues.
+
+Credits
+=======
+
+Authors
+-------
+
+* ACSONE SA/NV
+
+Contributors
+------------
+
+- Souheil BEJAOUI <[email protected]>
+- Samir GUESMI <[email protected]>
+
+Maintainers
+-----------
+
+This module is maintained by the OCA.
+
+.. image:: https://odoo-community.org/logo.png
+   :alt: Odoo Community Association
+   :target: https://odoo-community.org
+
+OCA, or the Odoo Community Association, is a nonprofit organization whose
+mission is to support the collaborative development of Odoo features and
+promote its widespread use.
+
+.. |maintainer-sbejaoui| image:: https://github.com/sbejaoui.png?size=40px
+    :target: https://github.com/sbejaoui
+    :alt: sbejaoui
+
+Current `maintainer <https://odoo-community.org/page/maintainer-role>`__:
+
+|maintainer-sbejaoui| 
+
+This module is part of the `OCA/contract <https://github.com/OCA/contract/tree/18.0/partner_contract_anniversary>`_ project on GitHub.
+
+You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.

partner_contract_anniversary/__init__.py

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+from . import models

partner_contract_anniversary/__manifest__.py

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+# Copyright 2019 ACSONE SA/NV
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+{
+    "name": "Partner Contract Anniversary",
+    "summary": """
+        This addon add a field for first contract line start date and compute
+        contract anniversary date""",
+    "version": "18.0.1.0.0",
+    "license": "AGPL-3",
+    "author": "ACSONE SA/NV, Odoo Community Association (OCA)",
+    "category": "marketing",
+    "website": "https://github.com/OCA/contract",
+    "depends": [
+        # OCA
+        "contract",
+    ],
+    "external_dependencies": {
+        "python": ["psycopg2"],
+    },
+    "data": [
+        "views/res_partner.xml",
+        "data/cron.xml",
+    ],
+    "maintainers": ["sbejaoui"],
+    "installable": True,
+}

partner_contract_anniversary/data/cron.xml

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+<?xml version="1.0" encoding="utf-8" ?>
+<!-- Copyright 2025 ACSONE SA/NV
+     License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). -->
+<odoo>
+    <record id="ir_cron_update_contract_anniversary" model="ir.cron">
+        <field name="name">Partners: Update Contract Anniversaries</field>
+        <field name="model_id" ref="base.model_res_partner" />
+        <field name="state">code</field>
+        <field name="code">model._cron_update_contract_anniversary()</field>
+        <field name="interval_number">12</field>
+        <field name="interval_type">months</field>
+    </record>
+</odoo>

partner_contract_anniversary/models/__init__.py

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+from . import res_partner
+from . import contract_line

partner_contract_anniversary/models/contract_line.py

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+# Copyright 2025 ACSONE SA/NV
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import api, models
+
+
+class ContractContract(models.Model):
+    _inherit = "contract.line"
+
+    @api.model_create_multi
+    def create(self, vals_list):
+        records = super().create(vals_list)
+        # Update contract anniversary
+        self.env["res.partner"]._update_contract_anniversary(records.partner_id.ids)
+        return records
+
+    def write(self, values):
+        res = super().write(values)
+        # Update contract anniversary
+        if "start_date" in values:
+            self.env["res.partner"]._update_contract_anniversary(self.partner_id.ids)
+        return res

partner_contract_anniversary/models/res_partner.py

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+# Copyright 2019 ACSONE SA/NV
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from datetime import date
+
+from odoo import fields, models
+
+
+class ResPartner(models.Model):
+    _inherit = "res.partner"
+
+    first_contract_line_start_date = fields.Date(string="First Contract Date")
+    contract_anniversary_date = fields.Date()
+
+    def _update_contract_anniversary(self, partner_ids=None):
+        def _anniv(d: date, year: int) -> date:
+            try:
+                return d.replace(year=year)
+            except ValueError:
+                return date(year, 2, 28)
+
+        domain = [("is_canceled", "!=", True)]
+        if partner_ids:
+            domain.append(("partner_id", "in", partner_ids))
+        groups = self.env["contract.line"].read_group(
+            domain=[("is_canceled", "!=", True)],
+            fields=["date_start:min", "partner_id"],
+            groupby=["partner_id"],
+        )
+        first_start = {
+            g["partner_id"][0]: fields.Date.to_date(g["date_start"])
+            for g in groups
+            if g.get("date_start")
+        }
+        this_year = fields.Date.context_today(self).year
+        for p in self.env["res.partner"].browse(partner_ids):
+            d0 = first_start.get(p.id)
+            anniv = _anniv(d0, this_year) if d0 else False
+            p.write(
+                {
+                    "first_contract_line_start_date": d0,
+                    "contract_anniversary_date": anniv,
+                }
+            )
+
+    def _cron_update_contract_anniversary(self):
+        self._update_contract_anniversary()

partner_contract_anniversary/pyproject.toml

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+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"

partner_contract_anniversary/readme/CONTRIBUTORS.md

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+- Souheil BEJAOUI \<<[email protected]>\>
+- Samir GUESMI \<<[email protected]>\>

partner_contract_anniversary/readme/DESCRIPTION.md

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+This module adds contract anniversary tracking to partner records, automatically calculating the first contract date and current year’s anniversary date.
+It includes a dedicated Contracts tab in the partner form and allows filtering by anniversary dates, useful for renewals and customer relationship management.

partner_contract_anniversary/readme/USAGE.md

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+## Viewing Contract Dates
+
+1. Navigate to **Contacts** → **Contacts**
+2. Open any partner record
+3. Click on the **Contracts** tab to view:
+   - **First Contract Date**: The earliest contract start date
+   - **Contract Anniversary Date**: This year's anniversary date (automatically calculated)
+
+## Searching by Anniversary Date
+
+1. Go to **Contacts** → **Contacts**
+2. Click the **Filters** button
+3. Select **Advanced Search**
+4. Use the **Contract Anniversary Date** field to:
+   - Find contacts with anniversaries on specific dates
+   - Filter for upcoming anniversaries
+   - Identify contacts without contracts